diff options
| -rw-r--r-- | arch/x86_64/kernel/genapic.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/genapic.c b/arch/x86_64/kernel/genapic.c index fe416fd4dbe..7a64ea18178 100644 --- a/arch/x86_64/kernel/genapic.c +++ b/arch/x86_64/kernel/genapic.c @@ -104,9 +104,14 @@ void __init clustered_apic_check(void) * (We don't use lowest priority delivery + HW APIC IRQ steering, so * can ignore the clustered logical case and go straight to physical.) */ - if (clusters <= 1 && max_cluster <= 8 && cluster_cnt[0] == max_cluster) + if (clusters <= 1 && max_cluster <= 8 && cluster_cnt[0] == max_cluster) { +#ifdef CONFIG_HOTPLUG_CPU + /* Don't use APIC shortcuts in CPU hotplug to avoid races */ + genapic = &apic_physflat; +#else genapic = &apic_flat; - else +#endif + } else genapic = &apic_cluster; print: |